Crower 00227S Features:

Crower 00227S hydraulic flat tappet camshaft for Small Block Chevy 262, 267, 283, 302, 305, 307, 327, 350, and 400 engines; 420 Series performance level. Pro55 small base-circle cam core design helps provide added connecting-rod clearance for 3.750 in. or greater stroke combinations. Cam specs include 250°/260° duration at .050 in., .522 in./.549 in. gross lift, 1.5/1.5 rocker ratio, and 108° lobe separation angle. Recommended operating range is 2500 to 6700 rpm with a 6500 rpm redline; advertised duration is 298° intake and 305° exhaust.

Chevy 262-400 Series 420 Hyd Flat Tappet Cam Pro55 Features:

• Small base-circle hydraulic flat tappet camshaft for SMALL BLOCK CHEVY 262-400 engines, added rod clearance for 3.750 in. or longer stroke builds
• 250°/260° duration at .050 in., .522 in./.549 in. gross valve lift, 108° lobe separation angle for strong upper-rpm performance
• 420 series cam profile, 2,500-6,700 rpm operating range, 6,500 rpm recommended redline for street-strip and race-oriented combinations
• Pro55 premium cam core, 1.5/1.5 rocker ratio compatibility, designed for SBC 262, 267, 283, 302, 305, 307, 327, 350, and 400 applications
• For uncontrolled vehicles or closed-competition racing use, break-in with 10W/30 conventional oil and low-pressure springs up to 225-250 lb open pressure

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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